US20240072568A1 - Energy storage device and energy storage power station - Google Patents
Energy storage device and energy storage power station Download PDFInfo
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- US20240072568A1 US20240072568A1 US18/350,086 US202318350086A US2024072568A1 US 20240072568 A1 US20240072568 A1 US 20240072568A1 US 202318350086 A US202318350086 A US 202318350086A US 2024072568 A1 US2024072568 A1 US 2024072568A1
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- energy storage
- power station
- supplementary
- storage device
- cabinet
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- 238000004146 energy storage Methods 0.000 title claims abstract description 263
- 239000013589 supplement Substances 0.000 claims abstract description 19
- 230000001502 supplementing effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/271—Lids or covers for the racks or secondary casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
Definitions
- the present application relates to the technical field of energy storage, and in particular to an energy storage device and an energy storage power station.
- the industrial and commercial energy storage cabinets cannot be used as the supplementary cabinet, that is, the industrial and commercial energy storage cabinets cannot supplement electric power to the energy storage power station. In this way, the industrial and commercial energy storage cabinets are limited in terms of use. Moreover, the supplementary cabinet cannot be used as an energy storage cabinet.
- An energy storage device includes an energy storage cabinet and a supplementary unit.
- a supplementary mounting position is provided on an outer side of a cabinet body of the energy storage cabinet, and the supplementary unit is arranged outside the cabinet body and at the supplementary mounting position.
- the energy storage cabinet is operable separately, and the energy storage cabinet is operable in conjunction with the supplementary unit for the energy storage device to supplement electric power to an energy storage power station.
- the energy storage cabinet includes a battery cluster and a switch control unit which are arranged in the cabinet body.
- the switch control unit is configured to control the battery cluster to store energy and control the battery cluster to supplement electric power to the energy storage power station.
- the battery cluster is connected with the switch control unit, and the switch control unit is configured to be connected with an energy storage converter;
- the energy storage device is configured to supplement electric power to the energy storage power station
- the battery cluster, the supplementary unit and the switch control unit are connected in a listed sequence
- the switch control unit is configured to be connected with a power station energy storage converter.
- the cabinet body is provided with a threading structure, and the threading structure is used for an output wire of the switch control unit to thread out of the cabinet body and for an input wire and an output wire of the supplementary unit to thread into the cabinet body.
- the threading structure includes two threading plates namely a first threading plate and a second threading plate.
- the first threading plate is detachably arranged on the cabinet body and is used for the output wire of the switch control unit to thread out of the cabinet body;
- the second threading plate is detachably arranged on the cabinet body, and is used for the output wire of the switch control unit to thread out of the cabinet body and for the input wire and the output wire of the supplementary unit to thread into the cabinet body.
- the threading structure includes a threading hole and a threading plate, the threading hole is used for the output wire of the switch control unit to thread out of the cabinet body, and the threading plate is used for the input wire and the output wire of the supplementary unit to thread into the cabinet body.
- the supplementary mounting position and the threading plate are arranged on a same cabinet board of the cabinet body.
- the supplementary unit is arranged on a side, proximate to the switch control unit, of the cabinet body.
- the supplementary unit is arranged on a side, adjacent to a cabinet door, of the cabinet body; or, the supplementary unit is arranged on a side, away from a cabinet door, of the cabinet body; or, the supplementary unit is arranged at a top of the cabinet body.
- the supplementary unit includes a fixed bracket and a supplementary device, the fixed bracket is fixed at the supplementary mounting position, and the supplementary device is fixed to the fixed bracket.
- the fixed bracket is detachably fixed at the supplementary mounting position, and/or, the supplementary device is detachably fixed to the fixed bracket.
- an energy storage power station is further provided according to the present application.
- the energy storage power station includes a power station energy storage converter, at least one power station energy storage cabinet and the energy storage device according to any one of the above embodiments.
- the number of the energy storage device is at least one, and the power station energy storage cabinet and the at least one energy storage device are connected in parallel to the power station energy storage converter.
- the energy storage device by providing the supplementary unit outside the energy storage cabinet, the energy storage device has the function of energy storage if the energy storage cabinet is operated separately, and the energy storage device is capable of supplementing electric power to the energy storage power station if the energy storage cabinet is operated in conjunction with the supplementary unit, and thus the energy storage device has the function of supplementing electric power to the energy storage power station. Therefore, the energy storage device has the functions of energy storage and supplementing electric power to the energy storage power station, which expands the functions of the energy storage cabinet. It is not required to provide a separate supplementary cabinet for the energy storage power station, which improves the flexibility of use.
- FIG. 1 is a schematic structural view of an energy storage cabinet in an energy storage device according to an embodiment of the present application
- FIG. 2 is a schematic structural view of the energy storage device according to an embodiment of the present application.
- FIG. 3 is a schematic view illustrating a case that the energy storage cabinet in the energy storage device is operated separately according to an embodiment of the present application;
- FIG. 4 is a schematic view illustrating a case that the energy storage device supplements electric power to an energy storage power station according to an embodiment of the present application.
- FIG. 5 is a schematic structural view of the energy storage power station according to an embodiment of the present application.
- FIGS. 1 to 5 Reference numerals in FIGS. 1 to 5 are listed as follows:
- an energy storage device 002 includes an energy storage cabinet 001 and a supplementary unit 200 .
- a supplementary mounting position 102 is provided on an outer side of a cabinet body 100 of the energy storage cabinet 001 , and the supplementary unit 200 is arranged outside the cabinet body 100 and at the supplementary mounting position 102 .
- the energy storage cabinet 001 is operable separately, and the energy storage cabinet 001 is operable in conjunction with the supplementary unit 200 for the energy storage device 002 to supplement electric power to an energy storage power station 004 . It should be noted that, when the energy storage cabinet 001 is operated separately, the supplementary unit 200 is not operated.
- two or more energy storage cabinets 001 can be used in parallel connection.
- two or more energy storage devices 002 can be used in parallel connection.
- the energy storage device 002 has the function of energy storage if the energy storage cabinet 001 is operated separately, and the energy storage device 002 is capable of supplementing electric power to the energy storage power station 004 if the energy storage cabinet 001 is operated in conjunction with the supplementary unit 200 , and thus the energy storage device 002 has the function of supplementing electric power to the energy storage power station 004 . Therefore, the energy storage device 002 has the functions of energy storage and supplementing electric power to the energy storage power station 004 , which expands the functions of the energy storage cabinet 001 . It is not required to provide a separate supplementary cabinet for the energy storage power station 004 , which improves the flexibility of use.
- the energy storage cabinet 001 includes a battery cluster 300 and a switch control unit 400 .
- the switch control unit 400 is configured to control the battery cluster 300 to store energy and control the battery cluster 300 to supplement electric power to the energy storage power station 004 . It should be noted that the battery cluster 300 and the switch control unit 400 are arranged in the cabinet body 100 .
- the battery cluster 300 is connected with the switch control unit 400 , and the switch control unit 400 is configured to be connected with an energy storage converter 003 , as shown in FIG. 3 .
- two or more energy storage cabinets 001 may be connected in parallel, and the two or more energy storage cabinets 001 are connected in parallel to the same energy storage converter 003 .
- the number of the energy storage cabinet 001 is two, and the two energy storage cabinets 001 are connected in parallel.
- the two energy storage cabinets 001 are connected in parallel to the same energy storage converter 003 .
- the battery cluster 300 , the supplementary unit 200 and the switch control unit 400 may be connected in a listed sequence, as shown in FIG. 4 . It can be understood that if the energy storage cabinet 001 is operated in conjunction with the supplementary unit 200 , the switch control unit 400 is configured to be connected with a power station energy storage converter 006 .
- the battery cluster 300 , the switch control unit 400 and the supplementary unit 200 may be connected in a listed sequence, and the supplementary unit 200 is configured to be connected with a power station energy storage converter 006 .
- the switch control unit 400 cannot control the supplementary unit 200 , resulting in poor safety and reliability.
- the energy storage device 002 is configured to supplement electric power to the energy storage power station 004
- the battery cluster 300 , the supplementary unit 200 and the switch control unit 400 are preferably connected in the listed sequence, and the switch control unit 400 is configured to be connected with the power station energy storage converter 006 .
- the safety and the reliability can be improved, and it can be ensured that the energy storage device 002 , whether being configured for energy storage or supplementing electric power, is output by an output wire of the switch control unit 400 , which is convenient to switch the function of the energy storage device 002 .
- the energy storage device 002 is configured to supplement electric power to the energy storage power station 004 , two or more energy storage devices 002 may be connected in parallel, and the two or more energy storage devices 002 are connected in parallel to the same power station energy storage converter 006 . As shown in FIG. 5 , the number of the energy storage device 002 is two, and the two energy storage devices 002 are used with being connected in parallel and are connected in parallel to the same power station energy storage converter 006 .
- the cabinet body 100 is provided with a threading structure for an output wire of the switch control unit 400 to thread out of the cabinet body 100 and for an input wire and an output wire of the supplementary unit 200 to thread into the cabinet body 100 .
- wire connections are ensured to be located in the cabinet body 100 , which improves the performance of protection.
- the threading structure is located at a bottom end of the supplementary mounting position 102 .
- the threading structure includes two threading plates 103 , namely a first threading plate and a second threading plate.
- the first threading plate is detachably arranged on the cabinet body 100 and is used for the output wire of the switch control unit 400 to thread out of the cabinet body 100 .
- the threading plate 103 shown in FIG. 1 is the first threading plate.
- the second threading plate is detachably arranged on the cabinet body 100 and is used for the output wire of the switch control unit 400 to thread out of the cabinet body 100 and for the input wire and the output wire of the supplementary unit 200 to thread into the cabinet body 100 .
- the number of a wire-passing hole of the first threading plate and the number of a wire-passing hole of the second threading plate are different, and the sizes of the wire-passing holes may be different.
- the first threading plate and the second threading plate are not arranged on the cabinet body 100 at the same time. Specifically, the first threading plate or the second threading plate is selected to be mounted according to the use of the energy storage device 002 .
- the output wire of the switch control unit 400 is configured to be connected with the energy storage converter 003 or the power station energy storage converter 006 , the input wire of the supplementary unit 200 is connected with the output wire of the battery cluster 300 , and the output wire of the supplementary unit 200 is connected with the input wire of the switch control unit 400 .
- the threading structure includes a threading hole 104 and a threading plate 103 , the threading hole 104 is used for the output wire of the switch control unit 400 to thread out of the cabinet body 100 , and the threading plate 103 is used for the input wire and the output wire of the supplementary unit 200 to thread into the cabinet body 100 .
- the wire does not pass through the threading plate 103 .
- the energy storage device 002 is configured to supplement electric power to the energy storage power station 004 .
- the wire passes through the threading plate 103 . In this way, there is no need to replace the threading plate 103 , which simplifies the function switching of the energy storage device 002 .
- the threading hole 104 may be lower than the threading plate 103 , so as to shorten a line path.
- the threading structure may include only one threading plate, the threading plate is used for the output wire of the switch control unit 400 to thread out of the cabinet body 100 , and for the input wire and the output wire of the supplementary unit 200 to thread into the cabinet body 100 , which is not limited to the above two embodiments.
- the supplementary mounting position 102 and the threading plate 103 are arranged on a same cabinet board of the cabinet body 100 , so as to facilitate wiring.
- the cabinet board is adjacent to the cabinet door 101 of the cabinet body 100 , which can realize the back-to-back arrangement of cabinet bodies 100 , that is, a back side of one cabinet body 100 is arranged adjacent to a back side of another cabinet body 100 .
- the back side of the cabinet body 100 is a side, away from the cabinet door 101 , of the cabinet body 100 .
- the supplementary unit 200 needs to be connected with the switch control unit 400 .
- the supplementary unit 200 may be located on a side, proximate to the switch control unit 400 , of the cabinet body 100 .
- the position of the supplementary unit 200 may be appropriately adjusted according to other requirements, which is not limited to the above embodiments.
- the cabinet body 100 is provided with the cabinet door 101 , and the cabinet door 101 is located on a side of the cabinet body 100 .
- the relative positional relationship between the cabinet door 101 and the supplementary unit 200 is selected according to actual needs.
- the supplementary unit 200 may be arranged on a side, adjacent to the cabinet door 101 , of the cabinet body 100 , as described above, which can realize the back-to-back arrangement of the cabinet bodies 100 .
- the supplementary unit 200 may be arranged on a side, away from the cabinet door 101 , of the cabinet body 100 , or the supplementary unit 200 may be arranged at a top of the cabinet body 100 .
- the supplementary unit 200 in order to facilitate the mounting of the supplementary unit 200 , includes a fixed bracket 201 and a supplementary device 202 .
- the fixed bracket 202 is fixed at the supplementary mounting position 102
- the supplementary device 202 is fixed to the fixed bracket 201 .
- the fixed bracket 201 is detachably fixed at the supplementary mounting position 102 , and/or, the supplementary device 202 is detachably fixed to the fixed bracket 201 .
- the fixed bracket 201 is detachably fixed at the supplementary mounting position 102 by a threaded fastener
- the supplementary device 202 is detachably fixed to the fixed bracket 201 by a threaded fastener.
- the detachable arrangement may be realized by other ways, which is not limited in this embodiment.
- the specific structure of the fixed bracket 201 is selected according to actual needs, which is not limited in this embodiment.
- the supplementary device includes a direct current/direct current converter, that is, a DC-DC converter.
- the DC-DC converter is in one-to-one correspondence with the battery cluster 300 . If the number of the battery cluster 300 is at least two, the number of the DC-DC converter is at least two, that is, all the DC-DC converters are connected in parallel to the switch control unit 400 .
- the supplementary unit may further include other device, which is not limited to the DC-DC converter.
- an energy storage power station 004 is further provided in an embodiment.
- the energy storage power station 004 includes: a power station energy storage converter 006 , at least one power station energy storage cabinet 005 , and the energy storage device 002 according to the above embodiments.
- the number of the energy storage device 002 is at least one, and the power station energy storage cabinet 005 and the at least one energy storage device 002 are connected in parallel to a power station energy storage converter 006 .
- the power station energy storage cabinet 005 is an original energy storage cabinet of the energy storage power station 004
- the power station energy storage converter 006 is an original energy storage converter of the energy storage power station 004
- the energy storage device 002 is a newly added supplementary cabinet of the energy storage power station 004 , that is, the energy storage device 002 is configured to supplement electric power to the energy storage power station 004 .
- the number of the energy storage device 002 is two, and the number of the power station energy storage cabinet 005 is four. In practical application, the number of the power station energy storage cabinet 005 and the number of the energy storage device 002 may also be appropriately adjusted, which are not limited in this embodiment.
- the energy storage power station 004 includes the energy storage device 002 , the energy storage power station 004 also has corresponding technical effects, which are not repeated herein.
Abstract
An energy storage device and an energy storage power station are provided. The energy storage device includes an energy storage cabinet and a supplementary unit. A supplementary mounting position is provided on an outer side of a cabinet body of the energy storage cabinet, and the supplementary unit is arranged outside the cabinet body and at the supplementary mounting position. The energy storage cabinet is operable separately, and the energy storage cabinet is operable in conjunction with the supplementary unit for the energy storage device to supplement electric power to an energy storage power station.
Description
- The present application claims priority to Chinese Patent Application No. 202222286161.4, titled “ENERGY STORAGE DEVICE AND ENERGY STORAGE POWER STATION”, filed on Aug. 29, 2022 with the China National Intellectual Property Administration, which is incorporated herein by reference in its entirety.
- The present application relates to the technical field of energy storage, and in particular to an energy storage device and an energy storage power station.
- During the operation of the conventional energy storage power station, the loss of electric power of an energy storage system is inevitable, and a supplementary cabinet needs to be added year by year to maintain the stability of electric power.
- With the increasing demand for industrial and commercial energy storage, industrial and commercial energy storage cabinets are developing rapidly. However, the industrial and commercial energy storage cabinets cannot be used as the supplementary cabinet, that is, the industrial and commercial energy storage cabinets cannot supplement electric power to the energy storage power station. In this way, the industrial and commercial energy storage cabinets are limited in terms of use. Moreover, the supplementary cabinet cannot be used as an energy storage cabinet.
- In summary, how to design an energy storage device which has the functions of energy storage and supplementing electric power to the energy storage power station has attracted attention of those skilled in the art.
- In view of this, an object of the present application is to provide an energy storage device, which has the functions of energy storage and supplementing electric power to an energy storage power station. Another object of the present application is to provide an energy storage power station including the energy storage device.
- In order to achieve the above objects, the following technical solutions are provided according to the present application.
- An energy storage device includes an energy storage cabinet and a supplementary unit.
- A supplementary mounting position is provided on an outer side of a cabinet body of the energy storage cabinet, and the supplementary unit is arranged outside the cabinet body and at the supplementary mounting position.
- The energy storage cabinet is operable separately, and the energy storage cabinet is operable in conjunction with the supplementary unit for the energy storage device to supplement electric power to an energy storage power station.
- In an embodiment, the energy storage cabinet includes a battery cluster and a switch control unit which are arranged in the cabinet body.
- The switch control unit is configured to control the battery cluster to store energy and control the battery cluster to supplement electric power to the energy storage power station.
- In an embodiment, in a case that the energy storage device is configured for energy storage, the battery cluster is connected with the switch control unit, and the switch control unit is configured to be connected with an energy storage converter; and
- in a case that the energy storage device is configured to supplement electric power to the energy storage power station, the battery cluster, the supplementary unit and the switch control unit are connected in a listed sequence, and the switch control unit is configured to be connected with a power station energy storage converter.
- In an embodiment, the cabinet body is provided with a threading structure, and the threading structure is used for an output wire of the switch control unit to thread out of the cabinet body and for an input wire and an output wire of the supplementary unit to thread into the cabinet body.
- In an embodiment, the threading structure includes two threading plates namely a first threading plate and a second threading plate.
- In a case that the energy storage device is configured for energy storage, the first threading plate is detachably arranged on the cabinet body and is used for the output wire of the switch control unit to thread out of the cabinet body; and
- In a case that the energy storage device is configured to supplement electric power to the energy storage power station, the second threading plate is detachably arranged on the cabinet body, and is used for the output wire of the switch control unit to thread out of the cabinet body and for the input wire and the output wire of the supplementary unit to thread into the cabinet body.
- Or, the threading structure includes a threading hole and a threading plate, the threading hole is used for the output wire of the switch control unit to thread out of the cabinet body, and the threading plate is used for the input wire and the output wire of the supplementary unit to thread into the cabinet body.
- In an embodiment, the supplementary mounting position and the threading plate are arranged on a same cabinet board of the cabinet body.
- In an embodiment, the supplementary unit is arranged on a side, proximate to the switch control unit, of the cabinet body.
- In an embodiment, the supplementary unit is arranged on a side, adjacent to a cabinet door, of the cabinet body; or, the supplementary unit is arranged on a side, away from a cabinet door, of the cabinet body; or, the supplementary unit is arranged at a top of the cabinet body.
- In an embodiment, the supplementary unit includes a fixed bracket and a supplementary device, the fixed bracket is fixed at the supplementary mounting position, and the supplementary device is fixed to the fixed bracket.
- In an embodiment, the fixed bracket is detachably fixed at the supplementary mounting position, and/or, the supplementary device is detachably fixed to the fixed bracket.
- Based on the above energy storage device, an energy storage power station is further provided according to the present application. The energy storage power station includes a power station energy storage converter, at least one power station energy storage cabinet and the energy storage device according to any one of the above embodiments.
- The number of the energy storage device is at least one, and the power station energy storage cabinet and the at least one energy storage device are connected in parallel to the power station energy storage converter.
- In the energy storage device according to the present application, by providing the supplementary unit outside the energy storage cabinet, the energy storage device has the function of energy storage if the energy storage cabinet is operated separately, and the energy storage device is capable of supplementing electric power to the energy storage power station if the energy storage cabinet is operated in conjunction with the supplementary unit, and thus the energy storage device has the function of supplementing electric power to the energy storage power station. Therefore, the energy storage device has the functions of energy storage and supplementing electric power to the energy storage power station, which expands the functions of the energy storage cabinet. It is not required to provide a separate supplementary cabinet for the energy storage power station, which improves the flexibility of use.
- For more clearly illustrating the technical solutions in the embodiments of the present application or in the conventional technology, the accompanying drawings used in the description of the embodiments or the conventional technology will be briefly described hereinafter. Apparently, the accompanying drawings described hereafter illustrate only embodiments of the present application, and other drawings can be obtained by those skilled in the art based on the drawings without any creative efforts.
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FIG. 1 is a schematic structural view of an energy storage cabinet in an energy storage device according to an embodiment of the present application; -
FIG. 2 is a schematic structural view of the energy storage device according to an embodiment of the present application; -
FIG. 3 is a schematic view illustrating a case that the energy storage cabinet in the energy storage device is operated separately according to an embodiment of the present application; -
FIG. 4 is a schematic view illustrating a case that the energy storage device supplements electric power to an energy storage power station according to an embodiment of the present application; and -
FIG. 5 is a schematic structural view of the energy storage power station according to an embodiment of the present application. - Reference numerals in
FIGS. 1 to 5 are listed as follows: -
001 energy storage cabinet, 002 energy storage device, 003 energy storage converter, 004 energy storage power station, 005 power station energy storage 006 power station energy storage cabinet, converter, 100 cabinet body, 101 cabinet door, 102 supplementary mounting 103 threading plate, position, 104 threading hole, 200 supplementary unit, 201 fixed bracket, 202 supplementary device, 300 battery cluster, 400 switch control unit. - The technical solutions in the embodiments of the present application will be described clearly and completely hereinafter in conjunction with the drawings in the embodiments of the present application. It is apparent that the described embodiments are only a part of the embodiments according to the present application, rather than all of the embodiments. Based on the embodiments in the present application, all of other embodiments, made by those skilled in the art without any creative efforts, fall into the scope of protection of the present application.
- As shown in
FIG. 2 , anenergy storage device 002 according to an embodiment includes anenergy storage cabinet 001 and asupplementary unit 200. - As shown in
FIG. 1 andFIG. 2 , asupplementary mounting position 102 is provided on an outer side of acabinet body 100 of theenergy storage cabinet 001, and thesupplementary unit 200 is arranged outside thecabinet body 100 and at thesupplementary mounting position 102. - In the
energy storage device 002, theenergy storage cabinet 001 is operable separately, and theenergy storage cabinet 001 is operable in conjunction with thesupplementary unit 200 for theenergy storage device 002 to supplement electric power to an energy storage power station 004. It should be noted that, when theenergy storage cabinet 001 is operated separately, thesupplementary unit 200 is not operated. - In a case that the
energy storage cabinet 001 is operated separately, two or moreenergy storage cabinets 001 can be used in parallel connection. In a case that theenergy storage cabinet 001 is operated in conjunction with thesupplementary unit 200, two or moreenergy storage devices 002 can be used in parallel connection. - In the
energy storage device 002, theenergy storage device 002 has the function of energy storage if theenergy storage cabinet 001 is operated separately, and theenergy storage device 002 is capable of supplementing electric power to the energy storage power station 004 if theenergy storage cabinet 001 is operated in conjunction with thesupplementary unit 200, and thus theenergy storage device 002 has the function of supplementing electric power to the energy storage power station 004. Therefore, theenergy storage device 002 has the functions of energy storage and supplementing electric power to the energy storage power station 004, which expands the functions of theenergy storage cabinet 001. It is not required to provide a separate supplementary cabinet for the energy storage power station 004, which improves the flexibility of use. - The specific structure of the
energy storage cabinet 001 may be selected according to actual needs. In a specific embodiment, as shown inFIG. 3 , theenergy storage cabinet 001 includes abattery cluster 300 and aswitch control unit 400. Theswitch control unit 400 is configured to control thebattery cluster 300 to store energy and control thebattery cluster 300 to supplement electric power to the energy storage power station 004. It should be noted that thebattery cluster 300 and theswitch control unit 400 are arranged in thecabinet body 100. - In the above embodiments, in a case that the
energy storage cabinet 001 is operated separately, that is, in a case that theenergy storage device 002 is configured for energy storage, thebattery cluster 300 is connected with theswitch control unit 400, and theswitch control unit 400 is configured to be connected with anenergy storage converter 003, as shown inFIG. 3 . - In a case that the
energy storage device 002 is configured for energy storage, two or moreenergy storage cabinets 001 may be connected in parallel, and the two or moreenergy storage cabinets 001 are connected in parallel to the sameenergy storage converter 003. Specifically, as shown inFIG. 3 , the number of theenergy storage cabinet 001 is two, and the twoenergy storage cabinets 001 are connected in parallel. Specifically, the twoenergy storage cabinets 001 are connected in parallel to the sameenergy storage converter 003. - In the above embodiments, in a case that the
energy storage cabinet 001 is operated in conjunction with thesupplementary unit 200, that is, in a case that theenergy storage device 002 is configured to supplement electric power to the energy storage power station 004, in one aspect, thebattery cluster 300, thesupplementary unit 200 and theswitch control unit 400 may be connected in a listed sequence, as shown inFIG. 4 . It can be understood that if theenergy storage cabinet 001 is operated in conjunction with thesupplementary unit 200, theswitch control unit 400 is configured to be connected with a power station energy storage converter 006. - In another aspect, the
battery cluster 300, theswitch control unit 400 and thesupplementary unit 200 may be connected in a listed sequence, and thesupplementary unit 200 is configured to be connected with a power station energy storage converter 006. In this way, theswitch control unit 400 cannot control thesupplementary unit 200, resulting in poor safety and reliability. - Therefore, by comparing the above two aspects, if the
energy storage device 002 is configured to supplement electric power to the energy storage power station 004, thebattery cluster 300, thesupplementary unit 200 and theswitch control unit 400 are preferably connected in the listed sequence, and theswitch control unit 400 is configured to be connected with the power station energy storage converter 006. In this way, the safety and the reliability can be improved, and it can be ensured that theenergy storage device 002, whether being configured for energy storage or supplementing electric power, is output by an output wire of theswitch control unit 400, which is convenient to switch the function of theenergy storage device 002. - If the
energy storage device 002 is configured to supplement electric power to the energy storage power station 004, two or moreenergy storage devices 002 may be connected in parallel, and the two or moreenergy storage devices 002 are connected in parallel to the same power station energy storage converter 006. As shown inFIG. 5 , the number of theenergy storage device 002 is two, and the twoenergy storage devices 002 are used with being connected in parallel and are connected in parallel to the same power station energy storage converter 006. - Based on the above connection structure, in order to facilitate wiring, the
cabinet body 100 is provided with a threading structure for an output wire of theswitch control unit 400 to thread out of thecabinet body 100 and for an input wire and an output wire of thesupplementary unit 200 to thread into thecabinet body 100. In this way, wire connections are ensured to be located in thecabinet body 100, which improves the performance of protection. - Specifically, the threading structure is located at a bottom end of the
supplementary mounting position 102. - In a specific embodiment, the threading structure includes two threading
plates 103, namely a first threading plate and a second threading plate. In a case that theenergy storage device 002 is configured for energy storage, the first threading plate is detachably arranged on thecabinet body 100 and is used for the output wire of theswitch control unit 400 to thread out of thecabinet body 100. It can be understood that, thethreading plate 103 shown inFIG. 1 is the first threading plate. In a case that theenergy storage device 002 is configured to supplement electric power to the energy storage power station 004, the second threading plate is detachably arranged on thecabinet body 100 and is used for the output wire of theswitch control unit 400 to thread out of thecabinet body 100 and for the input wire and the output wire of thesupplementary unit 200 to thread into thecabinet body 100. - It should be noted that, the number of a wire-passing hole of the first threading plate and the number of a wire-passing hole of the second threading plate are different, and the sizes of the wire-passing holes may be different. The first threading plate and the second threading plate are not arranged on the
cabinet body 100 at the same time. Specifically, the first threading plate or the second threading plate is selected to be mounted according to the use of theenergy storage device 002. The output wire of theswitch control unit 400 is configured to be connected with theenergy storage converter 003 or the power station energy storage converter 006, the input wire of thesupplementary unit 200 is connected with the output wire of thebattery cluster 300, and the output wire of thesupplementary unit 200 is connected with the input wire of theswitch control unit 400. - In a specific embodiment, as shown in
FIG. 2 , the threading structure includes athreading hole 104 and athreading plate 103, thethreading hole 104 is used for the output wire of theswitch control unit 400 to thread out of thecabinet body 100, and thethreading plate 103 is used for the input wire and the output wire of thesupplementary unit 200 to thread into thecabinet body 100. - In the threading structure, in a case that the
energy storage device 002 is configured for energy storage, the wire does not pass through thethreading plate 103. In a case that theenergy storage device 002 is configured to supplement electric power to the energy storage power station 004, the wire passes through thethreading plate 103. In this way, there is no need to replace thethreading plate 103, which simplifies the function switching of theenergy storage device 002. - Since the
switch control unit 400 generally needs to be connected with a reserved line on the ground, thethreading hole 104 may be lower than thethreading plate 103, so as to shorten a line path. - In another specific embodiment, the threading structure may include only one threading plate, the threading plate is used for the output wire of the
switch control unit 400 to thread out of thecabinet body 100, and for the input wire and the output wire of thesupplementary unit 200 to thread into thecabinet body 100, which is not limited to the above two embodiments. - Based on the above wiring manner, the
supplementary mounting position 102 and thethreading plate 103 are arranged on a same cabinet board of thecabinet body 100, so as to facilitate wiring. - Further, the cabinet board is adjacent to the
cabinet door 101 of thecabinet body 100, which can realize the back-to-back arrangement ofcabinet bodies 100, that is, a back side of onecabinet body 100 is arranged adjacent to a back side of anothercabinet body 100. The back side of thecabinet body 100 is a side, away from thecabinet door 101, of thecabinet body 100. - In the
energy storage device 002, thesupplementary unit 200 needs to be connected with theswitch control unit 400. In order to shorten the line path, thesupplementary unit 200 may be located on a side, proximate to theswitch control unit 400, of thecabinet body 100. - Alternatively, in practical application, the position of the
supplementary unit 200 may be appropriately adjusted according to other requirements, which is not limited to the above embodiments. - The
cabinet body 100 is provided with thecabinet door 101, and thecabinet door 101 is located on a side of thecabinet body 100. The relative positional relationship between thecabinet door 101 and thesupplementary unit 200 is selected according to actual needs. - Specifically, the
supplementary unit 200 may be arranged on a side, adjacent to thecabinet door 101, of thecabinet body 100, as described above, which can realize the back-to-back arrangement of thecabinet bodies 100. Alternatively, thesupplementary unit 200 may be arranged on a side, away from thecabinet door 101, of thecabinet body 100, or thesupplementary unit 200 may be arranged at a top of thecabinet body 100. - In the
energy storage device 002, in order to facilitate the mounting of thesupplementary unit 200, thesupplementary unit 200 includes a fixedbracket 201 and asupplementary device 202. The fixedbracket 202 is fixed at thesupplementary mounting position 102, and thesupplementary device 202 is fixed to the fixedbracket 201. - In order to facilitate disassembly and maintenance, the fixed
bracket 201 is detachably fixed at thesupplementary mounting position 102, and/or, thesupplementary device 202 is detachably fixed to the fixedbracket 201. - For example, the fixed
bracket 201 is detachably fixed at thesupplementary mounting position 102 by a threaded fastener, and thesupplementary device 202 is detachably fixed to the fixedbracket 201 by a threaded fastener. In practical application, the detachable arrangement may be realized by other ways, which is not limited in this embodiment. - The specific structure of the fixed
bracket 201 is selected according to actual needs, which is not limited in this embodiment. - The specific structure of the
supplementary device 202 is selected according to actual needs. In an embodiment, the supplementary device includes a direct current/direct current converter, that is, a DC-DC converter. The DC-DC converter is in one-to-one correspondence with thebattery cluster 300. If the number of thebattery cluster 300 is at least two, the number of the DC-DC converter is at least two, that is, all the DC-DC converters are connected in parallel to theswitch control unit 400. - In practical application, the supplementary unit may further include other device, which is not limited to the DC-DC converter.
- Based on the
energy storage device 002 according to the above embodiments, an energy storage power station 004 is further provided in an embodiment. - As shown in
FIG. 5 , the energy storage power station 004 includes: a power station energy storage converter 006, at least one power station energy storage cabinet 005, and theenergy storage device 002 according to the above embodiments. The number of theenergy storage device 002 is at least one, and the power station energy storage cabinet 005 and the at least oneenergy storage device 002 are connected in parallel to a power station energy storage converter 006. - It should be noted that, the power station energy storage cabinet 005 is an original energy storage cabinet of the energy storage power station 004, the power station energy storage converter 006 is an original energy storage converter of the energy storage power station 004, and the
energy storage device 002 is a newly added supplementary cabinet of the energy storage power station 004, that is, theenergy storage device 002 is configured to supplement electric power to the energy storage power station 004. - As shown in
FIG. 5 , the number of theenergy storage device 002 is two, and the number of the power station energy storage cabinet 005 is four. In practical application, the number of the power station energy storage cabinet 005 and the number of theenergy storage device 002 may also be appropriately adjusted, which are not limited in this embodiment. - Since the
energy storage device 002 according to the above embodiments has the technical effects described above, and the energy storage power station 004 includes theenergy storage device 002, the energy storage power station 004 also has corresponding technical effects, which are not repeated herein. - The above illustration of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments described herein, but should be in accordance with the broadest scope consistent with the principle and novel features disclosed herein.
Claims (17)
1. An energy storage device, comprising:
an energy storage cabinet; and
a supplementary unit; wherein
a supplementary mounting position is provided on an outer side of a cabinet body of the energy storage cabinet, and the supplementary unit is arranged outside the cabinet body and at the supplementary mounting position; and
the energy storage cabinet is operable separately, and the energy storage cabinet is operable in conjunction with the supplementary unit for the energy storage device to supplement electric power to an energy storage power station.
2. The energy storage device according to claim 1 , wherein the energy storage cabinet comprises:
a battery cluster and a switch control unit which are arranged in the cabinet body; wherein
the switch control unit is configured to control the battery cluster to store energy and control the battery cluster to supplement electric power to the energy storage power station.
3. The energy storage device according to claim 2 , wherein
in a case that the energy storage device is configured for energy storage, the battery cluster is connected with the switch control unit, and the switch control unit is configured to be connected with an energy storage converter; and
in a case that the energy storage device is configured to supplement electric power to the energy storage power station, the battery cluster, the supplementary unit and the switch control unit are connected in a listed sequence, and the switch control unit is configured to be connected with a power station energy storage converter.
4. The energy storage device according to claim 3 , wherein the cabinet body is provided with a threading structure, and the threading structure is used for an output wire of the switch control unit to thread out of the cabinet body and for an input wire and an output wire of the supplementary unit to thread into the cabinet body.
5. The energy storage device according to claim 4 , wherein
the threading structure comprises two threading plates namely a first threading plate and a second threading plate;
in a case that the energy storage device is configured for energy storage, the first threading plate is detachably arranged on the cabinet body and is used for the output wire of the switch control unit to thread out of the cabinet body; and
in a case that the energy storage device is configured to supplement electric power to the energy storage power station, the second threading plate is detachably arranged on the cabinet body, and is used for the output wire of the switch control unit to thread out of the cabinet body and for the input wire and the output wire of the supplementary unit to thread into the cabinet body;
or, the threading structure comprises a threading hole and a threading plate, the threading hole is used for the output wire of the switch control unit to thread out of the cabinet body, and the threading plate is used for the input wire and the output wire of the supplementary unit to thread into the cabinet body.
6. The energy storage device according to claim 5 , wherein the supplementary mounting position and the threading plate are arranged on a same cabinet board of the cabinet body.
7. The energy storage device according to claim 2 , wherein the supplementary unit is arranged on a side, proximate to the switch control unit, of the cabinet body.
8. The energy storage device according to claim 1 , wherein the supplementary unit is arranged on a side, adjacent to a cabinet door, of the cabinet body; or, the supplementary unit is arranged on a side, away from a cabinet door, of the cabinet body; or, the supplementary unit is arranged at a top of the cabinet body.
9. The energy storage device according to claim 1 , wherein the supplementary unit comprises a fixed bracket and a supplementary device, the fixed bracket is fixed at the supplementary mounting position, and the supplementary device is fixed to the fixed bracket.
10. The energy storage device according to claim 9 , wherein the fixed bracket is detachably fixed at the supplementary mounting position, and/or, the supplementary device is detachably fixed to the fixed bracket.
11. The energy storage device according to claim 2 , wherein the supplementary unit comprises a fixed bracket and a supplementary device, the fixed bracket is fixed at the supplementary mounting position, and the supplementary device is fixed to the fixed bracket.
12. The energy storage device according to claim 3 , wherein the supplementary unit comprises a fixed bracket and a supplementary device, the fixed bracket is fixed at the supplementary mounting position, and the supplementary device is fixed to the fixed bracket.
13. The energy storage device according to claim 4 , wherein the supplementary unit comprises a fixed bracket and a supplementary device, the fixed bracket is fixed at the supplementary mounting position, and the supplementary device is fixed to the fixed bracket.
14. An energy storage power station, comprising:
a power station energy storage converter; and
at least one power station energy storage cabinet, wherein
the energy storage power station further comprises the energy storage device according to claim 1 ; wherein
the number of the energy storage device is at least one, and the power station energy storage cabinet and the at least one energy storage device are connected in parallel to the power station energy storage converter.
15. An energy storage power station, comprising:
a power station energy storage converter; and
at least one power station energy storage cabinet, wherein
the energy storage power station further comprises the energy storage device according to claim 2 ; wherein
the number of the energy storage device is at least one, and the power station energy storage cabinet and the at least one energy storage device are connected in parallel to the power station energy storage converter.
16. An energy storage power station, comprising:
a power station energy storage converter; and
at least one power station energy storage cabinet, wherein
the energy storage power station further comprises the energy storage device according to claim 3 ; wherein
the number of the energy storage device is at least one, and the power station energy storage cabinet and the at least one energy storage device are connected in parallel to the power station energy storage converter.
17. An energy storage power station, comprising:
a power station energy storage converter; and
at least one power station energy storage cabinet, wherein
the energy storage power station further comprises the energy storage device according to claim 4 ; wherein
the number of the energy storage device is at least one, and the power station energy storage cabinet and the at least one energy storage device are connected in parallel to the power station energy storage converter.
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CN202222286161.4U CN218243114U (en) | 2022-08-29 | 2022-08-29 | Energy storage device and energy storage power station |
CN202222286161.4 | 2022-08-29 |
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US20180337385A1 (en) * | 2017-05-17 | 2018-11-22 | Flex Ltd. | Direct current battery string aggregator for standard energy storage enclosure platform |
CN208674327U (en) * | 2018-08-01 | 2019-03-29 | 江苏宏达电气有限公司 | A kind of high-voltage circuitbreaker driving power that low temperature environment uses |
CN111952505B (en) * | 2020-08-21 | 2023-03-31 | 阳光电源股份有限公司 | Heap power cabinet |
CN217086767U (en) * | 2022-04-11 | 2022-07-29 | 天津池瑞科技有限公司 | Lithium ion storage battery capable of being assembled and spliced |
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